Skip to content

Gayle Seddon

Southlake Health/Executive Director

2025 Salary

$215,340

Total compensation $216,070, including $730 in taxable benefits.

Source: Ontario’s Public Sector Salary Disclosure — names paid $100,000 or more that year. How we build this · Report an error on this page

At a Glance
2025

Employer Rank

#24

Southlake Health

Years on List

7

2019–2025

Peak Salary

$215,340

2025

Full 2025 roster at Southlake Health →·See where $215,340 ranks →

Total Compensation History

Total compensation by yearLine chart of 7 yearly values of total compensation, from $180,490 in 2019 to $216,070 in 2025.$100K$125K$150K$175K$200K$225K201920202021202320242025
Total compensation, 2019–2025. Axis starts at $100,000, the Sunshine List disclosure threshold.

Full History
2019–2025

$179,826 in 2019 is worth about $217,113 in 2025 dollars.

Full salary history, by year
YearPositionSalary
2025Executive DirectorSouthlake Health$215,340Benefits $730Total $216,070
2024Executive DirectorSouthlake Regional Health Centre$209,433Benefits $698Total $210,131
2023DirectorSouthlake Regional Health Centre$182,542Benefits $616Total $183,158
2022DirectorSouthlake Regional Health Centre$180,656Benefits $646Total $181,302
2021DirectorSouthlake Regional Health Centre$172,588Benefits $639Total $173,227
2020DirectorSouthlake Regional Health Centre$177,958Benefits $663Total $178,621
2019DirectorSouthlake Regional Health Centre$179,826Benefits $664Total $180,490

Take-Home Pay
(After Tax) · 2025 estimate

Gayle Seddon was paid $215,340 in 2025; after income tax, CPP and EI that is roughly $138,490, an effective income-tax rate of about 33.1%. At Southlake Health, 1,219 people made the 2025 list with a median salary of $119,117; Gayle Seddon's total compensation of $216,070 ranked #24. Most Hospitals & Boards of Public Health employees belong to HOOPP, so actual take-home is likely another 7–10% lower after pension contributions.

Estimated net pay
~$138,490
Effective income-tax rate (excl. CPP/EI)
~33.1%
CPP + EI contributions
~$5,507
All-in deduction rate (incl. CPP/EI)
~35.7%
vs. 2025 Executive Director median
+55%

Where does $215,340 rank on the Sunshine List? →

Estimate only: 2025 federal and Ontario rates, basic personal amounts, Canada employment amount and CPP/EI credits; single, employment income only, salary treated as full-year income. Ignores pension contributions (OMERS, HOOPP, OTPP, OPTrust and similar plans lower actual take-home), union dues, RRSPs and benefits.

Also at Southlake Health
2025

View all 1,219 employees at Southlake Health (2025) →